Overview

Add mem_allocator_malloc_aligned() API to support POSIX-compliant aligned memory allocation in the EMS allocator.

API

in mem-alloc/ems/

void *mem_allocator_malloc_aligned(mem_allocator_t allocator,
                                   uint32_t size, uint32_t alignment);

Key Features

• Supports alignments from 8 bytes to page size (powers of 2)
• Size must be multiple of alignment (POSIX requirement)
• Transparent free - mem_allocator_free() works for both normal and aligned allocations
• Realloc not supported for aligned allocations (returns NULL)

Implementation

• Over-allocation with metadata storage (8-byte header before returned pointer)
• Magic value detection in obj_to_hmu() for transparent free operation
• Full unit test suite with CMocka